Another form of zorbing is walking on water. The difference is that the zorb ball used on sloppy areas has two layers while that used on water has one layer. Zorbing can be played both indoors and outdoors on grass, gym surfaces, carpets, softwood, metal ramps, swimming pools, and inflatable surfaces or pools. These surfaces are available in open playing fields, amusement parks, aquatic parks, resorts, tourist spots, camping sites, and at social functions like festivals, sports galas, and carnivals. Note: Indoor venues can be used throughout the year while outdoors usually provide enough space for excitement. All venues should be inspected and cleaned prior to the game.